mcp-manager vs manual server config—which workflow are you using?

Been using mcp-manager for a couple weeks now after managing MCP servers manually through config files. The web UI is genuinely nice for quick toggles and testing new servers without restarting Claude, but I'm curious how many people actually ditched their file-based approach. Does the UI handle everything you need, or are there edge cases where you still need to hand-edit the config? Looking for real-world takes before I commit fully.